| Project/Area Number |
59850010
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| Research Category |
Grant-in-Aid for Developmental Scientific Research
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| Allocation Type | Single-year Grants |
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| Research Field |
物理計測・光学
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| Research Institution | Kyushu University |
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Principal Investigator |
YOSHIDA Keiji (1985-1986) Associate Professor, Faculty of Engineering, Kyushu University, 工学部, 助教授 (80108670)
入江 冨士男 (1984) 九州大学, 衛生学部, 教授
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| Co-Investigator(Kenkyū-buntansha) |
KANDA Yutaka Research Assistant, Fukuoka Institute of Technology, 工学部, 助手 (10140807)
ENPUKU Keiji Research Assistant, Faculty of Engineering, Kushu University, 工学部, 助手 (20150493)
NODA Minoru Associate Professor, Fukuoka Institute of Technology, 工学部, 助教授 (60140802)
AOKI Kazuo Professor, Faculty of Engineering, Kyushu University, 工学部, 教授 (90037680)
IRIE Fujio Professor, Faculty of Engineering, Kinki University, 工学部, 教授 (80037647)
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| Project Period (FY) |
1984 – 1986
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| Project Status |
Completed (Fiscal Year 1986)
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| Budget Amount *help |
¥15,900,000 (Direct Cost: ¥15,900,000)
Fiscal Year 1986: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 1985: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 1984: ¥10,100,000 (Direct Cost: ¥10,100,000)
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| Keywords | Superconducting integrated circuit / ミリ波・サブミリ波受信機 / ジョセフソン素子 / ミリ波受信機 |
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| Research Abstract |
The purpose of this research is to realize a superconductiong receiver system in millimeter and submillimeter wave region, where all elements of the system are superconducting devices. The obtained results are as follows:
1) Elements of the receiver system, i.e., a mixer, a local oscillator and an IF amplifier, are developed. For the mixer, we use the SIS mixer, whose fabrication technique is established with Nb/Pb Josephson junctions. A novel local oscillator is devised. The output power of the oscillator is about 1 <micro> W in the frequency range from 50 to 500 GHz, which is large enough for the local oscillator of the SIS mixer. The IF amplifier with new operation principle is also developed.
2) For the construction of the system, an efficient coupling method between the mixer and the oscillator is developed. With this method, they are integrated, and the performance of the integrated circuit is studied experimentally.
3) Performance of the present system is studied experimentally, and is evaluated. Future development for the multichannel system is also discussed.
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